3332521 has 4 divisors (see below), whose sum is σ = 3413844. Its totient is φ = 3251200.

The previous prime is 3332507. The next prime is 3332551. The reversal of 3332521 is 1252333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1252333 = 167 ⋅7499.

It can be written as a sum of positive squares in 2 ways, for example, as 1742400 + 1590121 = 1320^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 3332521 - 2⁵ = 3332489 is a prime.

It is a super-2 number, since 2×3332521² = 22211392430882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3332501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40600 + ... + 40681.

It is an arithmetic number, because the mean of its divisors is an integer number (853461).

Almost surely, 2^3332521 is an apocalyptic number.

It is an amenable number.

3332521 is a deficient number, since it is larger than the sum of its proper divisors (81323).

3332521 is an equidigital number, since it uses as much as digits as its factorization.

3332521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81322.

The product of its digits is 540, while the sum is 19.

The square root of 3332521 is about 1825.5193781497. The cubic root of 3332521 is about 149.3680225845.

Adding to 3332521 its reverse (1252333), we get a palindrome (4584854).

The spelling of 3332521 in words is "three million, three hundred thirty-two thousand, five hundred twenty-one".